Mona Berciu


Department of Physics & Astronomy

Current Projects

  • Effective magnon-mediated interactions between holes doped in a cuprate parent layer
  • Effective phonon-mediated interactions between particles in systems with Peierls-type electron-phonon coupling
  • Melting of a bipolaron crystal as a model for insulator-to-metal transition in BaBiO3 and in rare earth nickelates
  • Properties of polarons at finite temperatures

Selected Publications

  1. S. Johnston, A. Mukherjee, I. Elfimov, M. Berciu, G.A. Sawatzky. Charge disproportionation without charge transfer in the rare-earth nickelates as a possible mechanism for the metal-insulator transition. Phys. Rev. Lett. 112, 106404 (2014).
  2. M. Jiang, M. Berciu, G.A. Sawatzky. Critical nature of the Ni spin state in doped NdNiO2. Phys. Rev. Lett. 124, 207004 (2020).
  3. H. Ebrahimnejad, G.A. Sawatzky, M. Berciu. The dynamics of a doped hole in cuprates is not controlled by spin fluctuations. Nat. Phys. 10, 951 (2014).